A post to the
Vivendi Universal Games Forums (thanks
GameGossip) has word
on plans for open beta testing for TRIBES: Vengeance. The update stresses that
there is no official release date, but they describe tentative plans to begin an
open multiplayer test as early as this month:

It is expected sometime
this month, August, but that is subject to change if there are more bugs or
other items that need fixing before it is released for testing.